website-PretendoNetwork/public/assets/images/_README.md

How to optimise images

WebP is the best format to use for most images, as it provides a good compression over PNG and JPEG. It is supported by all modern browsers (https://caniuse.com/webp) and is the recommended format for images on the web.

Using imagemagick (Recommended)

This is the recommended method to convert images to WebP as it is faster and can be done in bulk.

Install imagemagick from: https://imagemagick.org/script/download.php

In the folder you would like to convert images, use the appropriate command:

mogrify -format webp *.png
mogrify -format webp *.jpg

Using a web service

If you don't want to install imagemagick, you can use towebp.io to convert images to WebP.

Go to https://towebp.io/ and upload your images. You can convert multiple images at once.

To match the default quality of imagemagick, use a quality of 90 (imagemagick uses 92 by default).